Sofflex2 Mattress Overlay Sys 3 Section 36 x 81.75 x 3.5 Hip Chairs 5V AAA battery ( Not Select Ear:Left Ear 5V AAA battery ( Not included ) Measurement Range: Blood Pressure: 20 280mmhg 5 (each section: 36 x 27 Comes with Reusable Cover * Non powered adjustable and reactive support surface for individuals who require skin soft tissue protection or have other therapeutic needs * Provides individualized pressure shear and friction management through force redistribution to an individual s shape * Cost effective option for different care settings costing less than high qualitypowered mattress systems * Easily cleaned and disinfected for reuse * Flexible interconnected air cells can be adjusted to match the body s contour providing personalized therapy and critical skin soft tissue protection * The SOFFLEX 2 is made of three sections that snap together simply add or releaseair in each mattress overlay section to accommodate the individual s needs * No need for concern of power failure or energy consumption costs * The SOFFLEX 2 is lightweight easy to transport easy to adjust and set up on different bed types * Mattress overlay system size: 36 x 81